package org.mipt.infsec.steganography.gui;
import javax.swing.*;
import java.io.File;

public class Utils {
    public final static String jpeg = "jpeg";
    public final static String jpg = "jpg";
    public final static String gif = "gif";
    public final static String tiff = "tiff";
    public final static String tif = "tif";
    public final static String png = "png";

    /*-----Get the extension of a file.-----*/

  public static String getExtension(File f){
      String ext = null;
      String s = f.getName();
      int i = s.lastIndexOf(".");

      if(i>0 && i<s.length()-1){
          ext = s.substring(i+1).toLowerCase();
      }
      return ext;
  }

  /*-----Return an ImageIcon, or null if the path was invalid.-----*/

    protected static ImageIcon createImageIcon(String path) {
        java.net.URL imgUPL = Utils.class.getResource(path);
        if(imgUPL != null){
            return new ImageIcon(imgUPL);
        }else{
            System.err.println("Couldn't find file: " + path);
            return null;
        }
    }

}
